köken: Univerbation of vergiss + mein + nicht, literally “forget me not”. The flower is considered a symbol of loyalty, friendship and remembrance. The verb vergessen used to be used with the object in the genitive case, using mein as the now-archaic genitive pronoun of ich. Therefore, the contemporary German construction would instead be "vergiss mich nicht".
köken: Unadapted borrowing from New Latin myosōtis, from Ancient Greek μυοσωτίς (muosōtís, “mouse's ear; forget-me-not”). It is so named because the shape of the petals resembles that of a mouse's ear.
pet (animal kept as companion) · forget-me-not (flowering plants of the genus Myosotis) · favourite (person or thing enjoying special regard or favour)
köken: Univerbation of ne (“don’t”) + felejts (“forget [me]”, second-person singular imperative), written with pronunciation spelling. Compare nebáncsvirág (“touch-me-not”) from ne bánts.